Bathroom scale



FIG. 1 is a top and right front perspective view of a bathroom scale showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof. 

The ornamental design for a bathroom scale, substantially as shown and described. 